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0.11. DAVIS.

HAY LOADER. APPLICATION FILED FEB. 5. 1918- 1,315,819. .Patent'edSept. 9,1919.

2 SHEETS-SHEET I- C. R. DAVIS.

HAY LUADER.

APPLICATION FILED mm. ma.

Patented Sept. 9, 19:19.

UNITED STATES PATENT OFFICE.

CALVIN :a. DAVIS, or nooxronn; inrInoIsi ASSIGN-ORnTO nmnnsomzenanrmermm COMPANY, or ROCKFORD; ILLINOIS, A CORPORATION or ILLINOIS.

.i'IAY-LOADER.

Specification of Letters iatent.

Patented Sept. 9, 1919.

Applicationfiled. February 5, 1918. seri l a 215,491,

'1 b all whom it may concern:

Be it known that I CALVIN ll. DAVIS, a citizen of the Uniter States, residing at Rockford, in thecounty ofWinnebago and State of Illinois, have invented ,certainnew and useful Improvements in Hay-Loaders,

of which the following isa speci cation.

This invention relates ;in general to hay loaders adapted to be draavn behind a hay rack for gathering hay from the ground and elevating and delivering it onto the rack. It is con'nnon practice toelevate the hay along an inclined bed or carrier-way, from the to of which the hay is delivered orlfalls onto t 1e rack or wagon. Yarioustypes of lnecluniisins are employed for, gathering and elevating the hay, such for example as reciprocating rake bars embodiedpinlwhat are eonnnonly known as rake-bar? loaders, and endless carriers trained over cylindrical *ake heads, asin the cylinder type loaders. sides of the carrier-way and converge at their upper ends to provide a contracted; delivery end so that the hay will be brought together more compactly on the elevating means and delivered onto the center of the load. Because of this construction, the hay, crowded inwardly I as it is'elevatechoften banks against the side boards and piles up on the elevator platform so asto clog and finally stop the operation. This invariably happens when the hay is heavy, and the stoppage must be cleared beforetheloading can be resumed.

The principal object of the present invention is tolrcmedy this defect, that is, to provide means for preventing clogging or banking of hay on the inclined elevatingplatform, incidental to the presence of stationary converging side boards, and to insure proper elevation ofthe hay under all conditions ofoperationi This I have accomplished inthe present instance, by equipping the side boards with inwardly projecting hay teeth and. providing means for. reciprocating the side boards longitudinally so; that upon each upward stroke thereof the hay will be actually lifted or elevated thereby and thus positively prevented from clogging on the elevating platform under any exigency of operation. I y f l have also aimed to provide simple and practical means for effecting this object,this means beingchiefly exemplified theem In such loaders side boardsdefine the" including spective, of a cylinder type .hay loader embodying my improvements r Fig. 2, a rear elevation of the loader, omitting the compressor and partsof the cylinder andelevating carrier; and

Figs. 3 and a, fragmentary perspective viewsof the operating and guiding means for the upper and lower ends respectively, of the side boards.

"It, will be noted, from the drawings that I have illustrated in detail only suchparts of a hay loader as are necessary for a. clear understanding of the present improvements, and in other respects any suitable construction may be followed. While my improvemcntsare equally well ada )ted for hay load ers of the rake bar type, l have illustrated the present. embodiment inconnection with a cylinder, loader, other features of which aredescribed in my, companion application 16 whichneed not necessarily be a through axle, a frame of general triangular shape base members 7 supportlng through the agency of nprights 8 andcross bars 9, a seriesoflinclined beams 11 defining inlgeneral the carrier-way, bed or elevating platform, and an endless elevatlng carrier c esignated 1n general by reference character ]12,t -a1ned; over a rake cylinder 13 co-axial with the traction wheels and over idler pulleys 14 secured to the upper end of the ele- The construction of the rating platform. In the present instance, the frame issupported at its fore-end by dirigible carrying wheels 1 5, and the elevator jis ofthe well known endless chainand transverse slat type.

rake cylinder is not shownas it has no direct bearing. on the subject matter of this case. The compressor, designated. 1n general. by reference character 16, is of a full-float ng type, and being of novel construction, is fully described in my copendingapplication mentioned above. It might be men tioned,.however, that the upper and lower ends of the compressor are suspended through; the agency of the springelements 17 h and 1.8 respectiyely, which allow a very 1H large range of flexibility so that the compressor will function perfectly under all exigencies of service.

Corning now to my improvements, it will be noted that the loader is provided with side boards 19, which in general appearance and arrangement resemble the side boards found on any ordinary hay loader. That is to say, the side boards define the sides of the carrier-wayand are arranged to converge upwardly, so that the delivery end of the elevator will be considerably narrower than its receiving end. As a consequence, the hay as it is elevated will be crowded inwardly by the side boards and delivered centrally onto the rack in front of theloadcr. Instead however, of providing stationary side boards, my invention contemplates the provision of means at the sides of the principal elevating means for not only performing the function of the old stationary side boards but of serving in addition to actually elevating the hay along the side of the elevator platform so as to assist in elevating thehay as a whole and to prevent clogging and banking of the hay, especially when the same is heavy and is being elevatedin large quantities. In the present embodiment of my improvements, single side boards are employed. They are pivotally attached adjacent to the lower endsto oscillating bars 21 through the agency of upright pivot bolts 22 attachedto cleats 23 in turn fixed to the outer side of the side boards as plainly illustrated in .Fig. 4, cotter pins passing throughthe pivot bolt 22 serving to hold the bracket 23 against.

lengthwise displacement. The oscillating bars 21 are respectively pivotally connected at their inner ends at 24.- to a plate fixed to the central bar 11 and are guided at their outer ends between the undersideof the adjacent frame bars 11 and the guide strips secured to'the bars 11 in spaced parallel relation therewith. The side boards are rigidly attached at a higher point to a cross bar 26 through the agency of suitable cleats 27. This cross-bar, disposed immediately beneath the elevator platform bars 11, is

confined and slidable at its ends between the fundersides of said bars and guide strips 28 secured to the bars similarly to the strips 25. The bar 26 carries a notched piece 29 for the reception of the central bar 11, so

that the latter will serve as a guide to prevent longitudinal displacement of the crossbar during the reception of the same in a direction parallel. with the longitud nal axis of the elevator platform.

Means is now provided for moving the sideiboardsback and forth lengthwise in the general plane of the elevator platform. It will be evident that the side bars are capable of such. movement,since the crossbar 26 may slide on theways 28 and the bars strokes.

1 21 may oscillate so that instead of a strictly rectilinear movement being imparted to the lower end ofthe side boards, they will be moved in an arcuate path inwardly during the latter part of their elevating strokes and outwardly con'iinencing their retractlng of the axle Sand is provided'witl'i an integral ratchet wheel 33 adapted to be respectively driven from the adjacent traction wheel through the agency of a pawl 3 1 carried by an arm 35 which is secured to a sleeve revoluble in the axle bracket and fixed to the traction wheel. The. pawls 3-1- which are held by suitable springs in driving connection with the toothed ratchet wheels 33 may be withdrawn from such'cngagement at will and held in inoperative position, so asnot to operate the cranks 31 when the hay loader is simply being trans ported. It will be manifest that when the pawls 31 are en aged the cranks 31 will be revolved by the traction wheels and,throngh the agency of pitmen 32, will reciprocate the cr'ossbar 26 so as to move the side boards 19 'backand forth lengthwise in the general longitudinal plane of the elevating platform. It will also'be evident that this reciprocating movement of the side boards will be modified by the action of the oscillatteeth or tines may be of anysuitabl'e con! struction, and in the present instance, are in the form of double tines pivotally secured to the side boards so as to be free to swing toward the latter and thus disengage from the hay during the retractingstrokes, and are limited in their outward swinging n'ioveinent so as to project at a proper working angle .for engaging the hay on the upward strokes. j, i

In operation, it is evident thatthe side boards will be. continuously reciprocated and as the hay is elevated the side boards will crowd the same inwardly as itapproaches the top of the elevatingplatform and at the same time will assist in elevating the hay so as to keep the same movingin a body and thereby absolutely prevent clog- The operating I means consists of ios quently occurs in the constructionsv now in dia 1.55 19 use. In addition to assistingin elevating the hay more 1pcr 1e(:tly, I am enabled by means of these recipmcating side boards to elevate a largerquantity ofshaywitha given size loader. than is possiblenvithany previous loader, assuming of course, that the compress-or is properly constructed Ito accomn'iodating the:large.volume of hay. It fol- .lows, therefore, thatthe haymay bewraked in, a large wiiulrow and elevated quickly witl'iout dangerof stopping or clogging the machine, whereas with other loaders the wilulrows must be smaller and consequently a greater length of time is required for loading a given quantity.

It is believed that the objects prefaced traction wheels and means driven. thereby for elevating hay along an nichned carr er way, of s de boards for the carrler-wayfand cranks operated by the tractionwheels and connected with the side boards for reciprocating the samelongitudinally.

2. In a hay loader, the combination with a main means for elevating hay along an inclined bed, of side boards flanking the bed and equippedwith inwardly projecting hay teeth, and means for moving the side boards back and forth in unison in the general longitudinal plane oi the bed, whereby the boards jointly assist the main means in feeding the hayupwardly thereon.

3. In a hay loader, the combination with means for elevating hay along an inclined bed, of side boards flanking the bed and equipped with inwardly projecting hay teeth, and means for moving the side boards back and forth in a general longitudinal plane of the bed for assisting in feeding the hay upwardly thereon and for moving the lower ends of the boards inwardly during their upward movement and outwardly durin g their retracting movement.

4:. In a hay loader, thecombination with means for elevating hay along an inclined bed. of side boards for the bed, means for reciprocating the side boards lengthwise, and links pivotally mountedintermediate the side boards and pivotallyconnectcd with the latter adjacent to their lower ends so as to modify the movement of the side boa rds when the latter are reciprocated.

5. In a hay leader, the combination with means for elevating hay along aninclined bed, of side boards for the bed, a transverse bar connected to and holding the side boards in.spaced i'elation, TllQtlnS operating on said transverse bar for movingthe side boards back and: forth in the general longitudinal planenof the bed, and means for modifying said reciprocating movement by imparting asidewise movement to the side boardsduringreciprocation thereof. i

6. In a hay. leader, the combination with means for; elevating hay along an inclined" bedyof side boards for the bed, means for i moving the side boards lengthwise back and forth in "the 1 general longitudinal plane of thebed, andmeans foriinparting sidewise n10 vement to the side boards during; lengthwise movementwthereof.

I 7; In a hay leader, the combination with traction wheels, an inclined carrier-way and hay. elevating means, of means providing upwardly converging sides for the carrier- .way so that the hay will becrowded inwardly as it isbeing elevated along said carrier-way and i will 1 be delivered through the wnarrowrestricted upper. end, said side means bein provided with inwardly directed hay teeth, and means operatediromthe tl actioni wheels for moving said haysteeth carrying means in a direction common with that of the hay elevating means so as toas- "sist in elevating the hay.

8. In a hayloader,the combination of an inclined carrier-way along which the hay is adapted to be elevated, an endless elevator movable along said carrienway for elevating the hay, sideboards defining the sides of the carrier-way and equipped on their inner sides with hay teeth, and means for imparting back and forth lengthwise movements to the Sideboards, which during their upward movement will approach the center Off the carrier-way and on the return movement will recede therefrom.

9. In a hayloader, the combination of means for elevating hay along an inclined bed, sideboards for the bed equipped at their inner sides with hay teeth, and means for reciprocating the sideboards longitudinally and for causing the Sideboards during their elevating stroke to be given a movement inwardly toward the center of the carrier-way.

10. In a hayloader, the combination of means for elevating hay along an inclined bed, Sideboards for the bed tied together at their upper ends, means for reciprocating the sideboards longitudinally of the bed, and means for moving the lower ends of the sideboards inwardly oi. the bed during the upward stroke and outwardly during the downward or return stroke.

11.. In a hay loader,the combination of a wheeled frame providing an upwardly and forwardly inclined bed, means movable over the bed for elevating hay, a sideboard at each side of the bed defining the sides of the hay carrier-way and capable of back and the main elevating means for elevating the hay in conjunction therewith.

12. In a hayloaderg having an 1ncl1ned "bed, the combination of a mam elevating means for elevating hay upon said bed, an

upright sideboard extending: longitudinally of the bed at each side thereof and defining the side of the earlier-way, hay teeth on the inner side of the Sideboards, the sideboards being arr-angedto converge inwardly at their upper ends" to provide a restricted delivery end, and means .for simultaneously reciprocating the. Sideboards lengthwise of the carrier-way in their converging relation, whereby the sideboards will, on their up stroke, jointly and inconjunction with the 'main elevating means serveto positively elevate abody of hay and deliver it through said restricted delivery end.

13. A hayloader having an inclined bed Gdpiuot thlapetent may be obtained for an cent: each, by addressing the Washington, D. 6.

and a: main means for elevating hay along said bed, sideboards for, thebed equipped with hayteeth, a connection between the sideboards through the means of which reciprocatory movement may be imparted to the sideboards lengthwise of :the bed for assisting in elevating the hay, traction wheels for driving said main elevating 1n'eans,1and means operated by the traction wheels for reclprocating the Sideboards means joining the Sideboards adjacent to their upper endsfor holding them in operativerelation, means for-guiding the side-- lengthwise of. the inclined bed, traction wheels, a crank oireaoh wheel,;and a pitman between each crank and the adjacent sideboard for reciprocating the latter during forward movement of the hayloader; 1

9 CALVIN R. DAVIS.

"Commissioner of Patents,

Sideboards for i the bed equipped on their inner sides. with hay teeth,

boards to permit reciprocation thereof 

